Founded by Oliver H. Kelley, the organization that came to be known as the _______ provided educational, social, and cultural activities to its rural members.

APrairie Alliance
BFarm Guild
CGrange
DOkies

Verified Answer :

the organization that founded by Oliver H kelley that provided educational, social, and cultural activities to its rural members is : C. Grange

Originally, this organization provide those supports only for local farmers. But as the time goes , this organization started to gain more and more political influences

hope this helps

Oliver H. Kelley was the founder of the National Grange of the Patrons.National Grange provided educational, social, and cultural activities to its rural members. 
It also had central influence in the Granger movement of the 1870's.
The best choice is :
C. Grange